Commissioning Senior Manager - Mechanical

As the Fleet Data Centers Mechanical Commissioning Senior Manager, you will direct end-to-end commissioning of mechanical systems across mission-critical and supporting facilities, from design review through operational handover. Assure systems are installed, tested, and verified to meet performance, reliability, safety, schedule, and budget requirements, with complete, auditable records.

This is a hands-on leadership role for an experienced commissioning professional who can make sound decisions in fast-moving project environments, resolve issues that threaten readiness, and communicate risks and progress clearly to field teams and Fleet leadership. Your work will help deliver dependable facilities at scale and strengthen repeatable commissioning practices as Fleet grows.

How will you make a difference?

• Commissioning planning: Define the commissioning scope, staffing, and schedules, and develop checklists and test scripts.
• Connect design to the field: Review design documents and sequences of operation for testability, maintainability, and operational readiness; coordinate with design and controls teams on commissioning needs.
• Commissioning execution: Oversee mechanical commissioning from installation and start-up through functional testing, performance validation, and integrated systems testing.
• Testing and validation: Coordinate OEM start-ups, TAB, BMS validation, and capacity and thermal testing to confirm compliance with design requirements.
• Documentation and handover: Maintain commissioning records and reports. Deliver complete turnover packages and operator training to support operational handover.
• Team leadership and coordination: Lead multidisciplinary teams and coordinate with clients, contractors, vendors, and stakeholders across design, construction, electrical, life safety, and operations.
• Safety and project delivery: Enforce safe work practices and code compliance. Manage budgets, resources, schedules, quality, and performance measures to deliver compliant projects on time and within budget.

Key Responsibilities

• Planning & Coordination: Review designs and sequences for testability; own commissioning scope, staffing, milestones, and key test plans.
• Commissioning Operations & Execution: Lead mechanical commissioning from installation through functional and performance testing; coordinate OEM, TAB, controls, and integrated testing.
• Documentation & Turnover: Ensure commissioning evidence, issue status, turnover documents, and operator training support a reliable handover.
• Team Leadership & Development: Coordinate delivery partners and internal teams; communicate readiness, risks, and decisions to stakeholders.
• Safety & Compliance: Set expectations for safe commissioning work and compliance with applicable codes and site requirements.
• Financial & Performance Management: Manage resources and forecasts; track schedule, issue closure, test completion, and readiness measures.

Required Qualifications

• 8+ years of mechanical commissioning experience in mission-critical facilities (data centers, hospitals, labs, pharma, or industrial)
• Bachelor's degree in Mechanical Engineering, Electrical Engineering, Architectural Engineering, or a related field
• In lieu of degree, Graduate of applicable Commissioning Technical school or military with relevant military electrical or technical experience AND (8) years minimum commissioning work experience.
• Proven track record leading functional testing and IST coordination, with strong SCADA/controls/BMS integration and TAB familiarity.
• Demonstrates the ability to lead multi-disciplinary teams in high-stakes startup and cutover windows.
• Exceptional organizational, project management, and problem-solving skills, with strong documentation discipline.
• Excellent written and verbal communication and stakeholder management skills; proficiency with project management and commissioning platforms.

Preferred Qualifications

• ASHRAE BCxP, ACG CxA, NEBB BSC or equivalent certifications

Travel and Schedule: Willingness and ability to travel (25–50%) to project sites as needed; extended hours during startup/functional/IST windows, including weekend/night shifts, and an occasional holiday if required.

Location: This is a remote position with travel

Expected Salary Range: $160,000 - $190,000 Base salary + Discretionary Bonus

Fleet Data Centers designs, builds and operates mega-scale data center campuses. Fleet provides its customers with flexibility and predictability to meet their upside demand forecasts, addressing a key need in the market as traditional leased models are struggling to keep pace with the demand for new Cloud and AI infrastructure. Fleet is led by a team of industry veterans that have already made a lasting imprint on the evolution of global digital infrastructure and are committed and uniquely capable of upleveling data center development scale and operations in the face of rising demand. Fleet is well positioned to bring in-house design, engineering, and operational capabilities to collaborate with customers on tailored solutions for campuses of 500MW+. This unique model enables Fleet to provide the world’s largest and most sophisticated customers with a seamless extension of their own data center fleets with constant access to design innovation.

Fleet Data Centers Employment

Fleet Data Centers employees enjoy competitive compensation and comprehensive benefits, including 100% employer-covered medical, dental, and vision insurance, a 401K program, standard paid holidays, and unlimited PTO.

NOTE: This job description is not intended to be all-inclusive. Employees may perform other related duties to meet the organization's ongoing needs.

Fleet Data Centers is proud to be an Equal Opportunity Employer. Qualified applicants are considered for employment regardless of age, race, color, religion, sex, national origin, sexual orientation, gender identity, disability, or veteran status. If you need assistance applying for any of our open positions, please contact us at info@fleetdatacenters.com